Insulator for high-tension lines.



N'. ROWB.

INSULATOB I'OH HIGH TENSION LINES.

nrL'IoATIoH mam nl, nos.

907,406. Patented Dec. 22, 1908.

`NORMAN ROWE, OF'GUANAJ'USTQ, -MEXIGO.

Specification of Letters Patent.

` Patented Dee. 22, 190e.

Application led January 29, 1906. Serial No. 298,314.

In the electrical'transmission bf power by high tension currents great difliculty has been encountered in obtaining properlinsulation of the line conductors. In fact, tothe best of my knowledge, derived from a considerable ex erience in power transmission, no thoroughly satisfactory insulator has bee found for tensions of over sixty thousan volts.

' It is therefore the object of my present invention to provide an insulator which can be used with safety and success on lines carrying very high voltages. It is also desirable that the insulator be simple and inexpensive, and readily applied.

To these ends the invention consists in the novel features of construction, arrange# ments of parts and combinations of elements hereinafter described, and more particularly pointed out in the appended claims.

In the annexed drawing is shown the preferred embodiment of the invention, the nonconducting shell being shown in section.

The body of the device consists of a hollow cylinder 1 of oroelain, glass, or other suitable non-con ucting material, and preferably provided at intervals'with lianges or petticoats 2. Through the cylinder or body extends a rod 3 of non-conducting material possessing considerable tensile strength. Any material possessing these qualities may be used lor this rod, but at present I knowof no better material for the purpose than hickory wood. The` rod is at its ends screwed into caps 4, `referably of iron, having internally threade sockets 5 to receive the threaded ends ol the rod. The caps are screwed up'as tightly as desired', thus holding the cylinder very firmly. As further protection against displacement the caps may each have a ila-nge extendin over the end of the cylinder' or body. eiore placing the upper cap in position the interior of the shell l may be filled with melte asphaltu'ov or other suitable non-condey ting material, as indicated at 6. Each cap is provid ed with/anfeyo, as 7, and the device is suspended by one of these from the cross arm 8 in any convenient and suitable manner, as by means of an eye or hook bolt 9. From the otlher eye hangs the line clamp 10, which supports the conductor 11.

If desired, the shell or cylinder may be built up of separable sections, as shown, each provided with a flange or etticoat. Gne or more such sections may e employed, thus making the device as long and resistant as desire The forni herein specifically shown and described is of course merely the preferred embodiment of the invention, which may be variously embodied without departure from its proper scope as deiined by the following claims.

What I claim is:

1. An insulator for high tension conductors, comprising a hollow body or shell of nonconducting materialy provided with one or more llanges or petticoats and having its ends alike in configuration, caps on and lit ting the ends of the body or shell, a binding rod of non-conducting material connecting the caps inside the body or shell and securing the caps thereon, and suspension devices on the caps, as set forth.

2. An insulator for high tension conductors, comprising a flan ed hollow body or shell, built up of a. plurdglity of' sections, caps on the ends of the body or shell, a binding rod of non-conducting material connecting the caps inside the body or shell, and suspension devices on the caps, as set forth.

3. An insulator for high tension conductors, comprising a hollow body or shell of non conducting material, caps on the ends of the body or shell, a noneconducting binding rod connecting the caps inside the body or shell, and a filling of plastic non-conducting material in the body or shell around the binding rod, as set forth.

4. An insulator for high tension conductors, cornpr'sing a hollowbody or shell of nonconductinh material,` built up of a plurality of sections arranged ond to end, whereby the sizeof the insulator may be varied by the addition or omission of sections, caps on the ends of the body. or shell, a non-conducting binding rod connectl'g the caps inside' the body or shell to hold the sections thereof together', and' suspension devices on the caps, as set forth.

5. An insulator for .high tension oonduc l meeting the caps inside the hollow body 01'" tors, oomprisinga hollowbody or shell of insushell to hold the sections thereof together, as lating material, built up ,of sections arranged set forth. end to end, whereby the size of the insulator NORMAN ROWE,

5 may be varied by the addition or omission of sections, eye-caps on the ends of the body or shell, and a non-conducting binding rod con- Witnesses:

MAURICE E. CURTIS, KATHARINE WINTHERS. 

